CVE-2020-4305: IBM InfoSphere Information Server

High severity, CVSS 8.8. EPSS: 4.5% chance of exploitation in the next 30 days.

IBM InfoSphere Information Server 11.3, 11.5, and 11.7 could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data. By persuading a victim to visit a specially crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 176677.

Affected products

• IBM InfoSphere Information Server: from 11.7.0.0, up to and including 11.7.1.1; version 11.3.0 only; version 11.5.0 only
• IBM InfoSphere Information Server On Cloud: from 11.7.0.0, up to and including 11.7.1.1; version 11.5.0.0 only

Published 2020-07-09. Last modified 2026-06-17.